Power stays on top in practice two

The Penske driver had led the way in the morning, and as the second session approached its halfway point Power re-established himself at the head of the order, usurping Andretti Autosport's Tony Kanaan.

Having hit the front, Power went quicker and quicker until he was half a second clear of the field. Although his rivals later closed in, no one was able to depose the championship leader.

Kanaan eventually returned to second, ahead of Penske's Helio Castroneves and Ganassi's Scott Dixon, with Marco Andretti fifth for Andretti Autosport.

Takuma Sato produced his most competitive performance since joining IndyCar by taking sixth place for KV Racing. Ryan Briscoe was seventh in the third Penske despite his car grinding to a halt on the approach to Turn 6 early on. He swiftly rejoined the session after being brought back to the pits.

Hideki Mutoh (Newman/Haas/Lanigan), Mike Conway (Dreyer & Reinbold) and reigning champion Dario Franchitti (Ganassi) completed the top ten.

Formula Renault 3.5 champion Bertrand Baguette finished his first day as an IndyCar driver back in 24th place - but was just 1.5s off Power's pace.

With Grand-Am the main event on the Saturday schedule, the IndyCar field will go straight into qualifying at 9.20am local time tomorrow morning.

Pos  Driver               Team                    Time        Gap
 1.  Will Power           Penske                  1m11.1856s
 2.  Tony Kanaan          Andretti                1m11.3011s  + 0.1155s
 3.  Helio Castroneves    Penske                  1m11.3697s  + 0.1841s
 4.  Scott Dixon          Ganassi                 1m11.4243s  + 0.2386s
 5.  Marco Andretti       Andretti                1m11.5446s  + 0.3589s
 6.  Takuma Sato          KV                      1m11.5818s  + 0.3961s
 7.  Ryan Briscoe         Penske                  1m11.6080s  + 0.4224s
 8.  Hideki Mutoh         Newman/Haas/Lanigan     1m11.6658s  + 0.4801s
 9.  Mike Conway          Dreyer & Reinbold       1m11.7169s  + 0.5313s
10.  Dario Franchitti     Ganassi                 1m11.7740s  + 0.5883s
11.  Ryan Hunter-Reay     Andretti                1m11.8234s  + 0.6378s
12.  Justin Wilson        Dreyer & Reinbold       1m11.9248s  + 0.7391s
13.  Alex Lloyd           Dale Coyne              1m12.1157s  + 0.9300s
14.  Alex Tagliani        Fazzt                   1m12.1312s  + 0.9456s
15.  Simona de Silvestro  HVM                     1m12.1516s  + 0.9659s
16.  Raphael Matos        Luczo Dragon de Ferran  1m12.1585s  + 0.9728s
17.  Dan Wheldon          Panther                 1m12.3549s  + 1.1692s
18.  Graham Rahal         Sarah Fisher            1m12.4356s  + 1.2500s
19.  Danica Patrick       Andretti                1m12.4720s  + 1.2864s
20.  Mario Moraes         KV                      1m12.5084s  + 1.3228s
21.  EJ Viso              KV                      1m12.5425s  + 1.3569s
22.  Vitor Meira          Foyt                    1m12.6025s  + 1.4168s
23.  Mario Romancini      Conquest                1m12.6651s  + 1.4795s
24.  Bertrand Baguette    Conquest                1m12.7445s  + 1.5588s
25.  Milka Duno           Dale Coyne              1m16.0652s  + 4.8796s